Could anyone pint me to a video demonstrating DPM AF speed? I have seen a couple on Youtube but were hardly useful. Any comparison description (e.g. with a -specific- Olympus m4/3 body+lens combination) could be helpful, as well.

Also, I've noticed in one video review that the AF mechanism was causing a lens screeching sound, more like a piece chalk dragged sharply on a blackboard; could any DPM owner confirm this?